Blender addons to make the bridge between Blender and geographic data
Cross platform (lin/win/mac) geographical information system (GIS)
Python data, Leaflet.js maps
Accurately Locate Smartphones using Social Engineering
Large-scale WebGL-powered geospatial data visualization analysis
An open source geocoder for openstreetmap data
Interactive, thoroughly customizable maps in the browser
GeoServer repository
Traccar GPS Tracking System
Mybatis common mapper, easy to use
Self-hostable alternative to Google Timeline
Open Source Routing Machine - C++ backend
Handling and basic analysis of hyperspectral data in R
Toolkit for working with and mapping geospatial data
... the open-source glide computer
GWC is a tile server and caching proxy written in Java
Open Source Desktop GIS with Surveying and Cartography Functionality
Geographic feature extraction and data mining
Bootable linux distro for Geospatial Applications
Build your own GPS unit